Biden Faces Scrutiny From Senators Over Yemen Strikes
• Sen. Kaine said Biden admin's legal justification for attacks on Houthis is "laughable"
• Kaine has "grave skepticism" about admin's interpretation of presidential military powers under Constitution
• Sen. Murphy said it "looks like war" and requires congressional authorization
• Murphy supports initial Houthi response but said operations now need congressional approval
• Sens. Kaine, Murphy, Young, and Lee wrote Biden requesting he outline his legal authority, especially on defending international vessels